CN102812378A - Method And Apparatus For Testing Received Signals In A Radio Signal Positioning System - Google Patents

Method And Apparatus For Testing Received Signals In A Radio Signal Positioning System Download PDF

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Publication number
CN102812378A
CN102812378A CN2010800655094A CN201080065509A CN102812378A CN 102812378 A CN102812378 A CN 102812378A CN 2010800655094 A CN2010800655094 A CN 2010800655094A CN 201080065509 A CN201080065509 A CN 201080065509A CN 102812378 A CN102812378 A CN 102812378A
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signal
reception
test
parameter
antenna element
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CN102812378B (en
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F·拜洛尼
V·兰基
A·凯努莱宁
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Nokia Technologies Oy
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Nokia Oyj
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
    • G01S19/235—Calibration of receiver components
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/72—Diversity systems specially adapted for direction-finding
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205—Details
    • G01S5/021—Calibration, monitoring or correction

Abstract

A method comprising: receiving signals associated with multiple antenna elements; obtaining a parameter of the received signals for at least some of the multiple antenna elements; testing the obtained parameters; if the test fails, rejecting the received signals for use in positioning the apparatus; if the test passes, using the received signals for positioning the apparatus.

Description

Be used for testing the method and apparatus of the signal that is received in the radio signal positioning system
Technical field
Embodiments of the invention relate to the location.Particularly, they relate to and are used to the method, device, module, chipset or the computer program that utilize radio signal to position.
Background technology
Existing have many known being used to utilize radio frequency signals to confirm the technology of the position of device.Some general technology relate to the use of GPS (GPS), and the satellite transmission of many earth orbital operations makes gps receiver can confirm the radio frequency signals of its position in GPS.Yet GPS often is not very effective in confirming accurate indoor location.
Some non-GPS location technologies make device can confirm its indoor location.Yet some technology in these technology can not produce the result who confirms the exact position, and other technology is for too complicated for simple use the in the mancarried device.For example, carry out the required processing power amount of this technology for being unpractical for providing in the mancarried device, this possibly need to carry out parallel function.
Summary of the invention
According to various embodiments of the invention, a kind of method is provided, comprising: receive the signal that is associated with a plurality of antenna elements; Obtain at least some the parameter of signal of reception of said a plurality of antenna elements; The parameter that test is obtained; If said test crash, the signal of then refusing said reception is used for locating device; If said test is passed through, then the signal of said reception is used to locate said device.
According to various embodiments of the invention, a kind of device is provided, comprising: testing circuit is configured to detect the parameter of the signal of the reception that is associated with corresponding a plurality of antenna elements; Test circuit; If be configured to test the parameter of being obtained and be configured to said test crash then make the signal of realizing said reception be used to locate the refusal of said device, and if be configured to said test through then make the signal of said reception can be used in the said device in location.
According to various embodiments of the invention, a kind of computer program is provided, when said computer program loads is made in processor the time said processor can: the parameter that test is obtained from the reception signal that is associated with corresponding a plurality of antenna elements; If said test crash then makes the signal of realizing said reception be used for the refusal of locating device, and if said test pass through, then make the signal of said reception can be used in the said device in location.
According to various embodiments of the invention, a kind of system is provided, comprising: the source is configured to send the radio signal that is used for the location receivers device; Acceptor device comprises: a plurality of antenna elements are configured to receive the said radio signal of sending from said source; Testing circuit is configured to detect at least some the parameter of signal of said reception of said a plurality of antenna elements; Test circuit; If be configured to test the parameter of obtaining and be configured to said test crash then make the signal of realizing said reception be used to locate the refusal in said source, and if be configured to said test through then make the signal of said reception can be used in said source, location.
According to various embodiments of the invention, a kind of system is provided, comprising: a plurality of sources of spatially separating, each is configured to send the radio signal that is used for the location receivers device; And acceptor device, comprising: at least one antenna element is configured to receive the said radio signal of sending from said source; Testing circuit is configured to detect at least some the parameter of signal of said reception of said multiple source; And test circuit; Be configured to test the said parameter of obtaining; And if be configured to said test crash then make the signal of realizing said reception be used to locate the refusal of said device, and if be configured to said test through then make the signal of said reception can be used in the said device in location.
According to various embodiments of the invention, a kind of device is provided, comprising: at least one processor; With at least one storer that comprises computer program code; Said at least one storer and the said computer program code that is disposed; With said at least one processor, said device is carried out at least: the parameter that test is obtained from the signal of the reception that is associated with corresponding a plurality of antenna elements; If said test crash then makes the signal of realizing said reception be used for the refusal of locating device, and if said test pass through, then make the signal of said reception can be used in the said device in location.
Description of drawings
For the better understanding of various embodiment of the present invention, will only make reference now to accompanying drawing through the mode of example, in the accompanying drawings:
Fig. 1 illustrates the device that receives radio signals from transmitter;
Fig. 2 is the synoptic diagram of acceptor device;
Fig. 3 is the process flow diagram of the method for estimated position;
Fig. 4 illustrates and is used to utilize displacement (displacement) or scope to come the synoptic diagram of estimated position as constraint;
Fig. 5 schematically illustrates and is used to determine whether to handle the method for the signal of reception with definite orientation (bearing);
The schematically illustrated reception volume (volume) that array limited of Fig. 6 a plurality of antenna elements;
An example of the schematically illustrated suitable aerial array of Fig. 7;
The schematically illustrated parameter how to obtain the signal that is received of Fig. 8 A and Fig. 8 B.
Embodiment
Fig. 1 illustrates (carrying mobile radio device 10) people 92 95 places, position on the floor 100 of buildings 94.This buildings 94 for example can be shopping center or conference centre.
Base station receiver device 30 is positioned at 80 places, position of buildings 94.In the example that illustrates, position 80 is (being overhead inside surface) on the ceiling of buildings 94, but receiver can place other places described in other is realized, for example on the wall.
Position 80 is directly over the point of indicating with reference marker 70 on the floor 100 of said buildings.Acceptor device 30 is used to make the position that can confirm device 10, yet this needs not to be by what acceptor device 30 was provided function only arranged.For example, acceptor device 30 can be for example to be used for the part of transceiver that radio signal via wireless lan (wlan) offers wireless internet access the user of device 10.
People 92 position 95 is that said orientation 82 is from the position 95 of position 80 through-going devices 10 of acceptor device 30 through 82 (shown in Fig. 4) assigned address defines along the orientation.Said orientation 82 is by pitching angle theta and position angle Φ definition.
Mobile device 10 can be a hand held portable electronics for example, such as mobile radiotelephone.Device 10 can be used as beacon (beacon) and periodically sends radio signal 50.
Said radio signal for example can have 100 meters or littler range of transmission.For example, said radio frequency signals can be 802.11 WLANs (WLAN) signal, Bluetooth signal, ultra broadband (UWB) signal or Zigbee signal.
An example of the schematically illustrated base station receiver device 30 of Fig. 2.This acceptor device 30 comprises and comprises a plurality of antenna element 32A, 32B, and the aerial array 36 of 32C, said a plurality of antenna element 32A, 32B, 32C receive the corresponding radio signal 50A that sends from mobile device 10,50B, 50C......Aerial array 28 is connected to acceptor circuit 34 via switch 38.Said switch 38 for example can switch to acceptor circuit 34 with each antenna element 32 according to the order of definition.Acceptor circuit 34 is handled the signal that the receives characteristic with the signal 50 that obtains reception.Acceptor circuit 34 is provided to controller 33 with output.
Acceptor circuit 34 need be from the signal 50A of said reception, and 50B, 50C obtain " displacement information ", and the signal 50A of said reception, 50B, 50C depend on corresponding antenna element 32A, 32B, the relative displacement of 32C especially.In the example of following detailed description, said displacement information comprises phase information.
Acceptor circuit 34 is also configurable to be the signal of the said reception of demodulation.
For example, acceptor circuit 34 I-Q modulation carrying out demodulation capable of using, said I-Q modulation also is known as the quaternary phase shift modulation.In this modulation technique, with two quadrature carriers (sine and cosine) independently amplitude modulation with define symbol.At acceptor circuit 34 places, the amplitude of said two quadrature carriers is detected as second mining appearance (complex sample), and confirm immediate matching symbols.Be understood that because when receiving from different directions the intrinsic phase propetry of antenna element 32 and because the different traveling time of signal from sender device 10 to each antenna element 32 50 has out of phase and amplitude so the same signal that receives at different antennae element place will be received as.The intrinsic existence of being somebody's turn to do " traveling time (time of flight) " information in the phase place of the signal 50 that receives makes and can handle the signal 50 that is received, as be described in more detail below, to confirm the orientation 82 of sender devices 10 from acceptor device 30.
In the drawings, the antenna element 32 that three differences move only is shown, yet in reality realizes, can uses more antenna element 32.For example can 16 patch antenna element be distributed on the surface of hemisphere.Three is the minimum number of the radio signal that can confirm that at acceptor device 30 places orientation 82 is required.
Device 30 self need not send to confirm its position.In addition, it can carry out necessary processing alone to confirm orientation 82 and to utilize this orientation and the position of constraint information estimation device 10 of 82 along the orientation.
Controller 33 can be the treatment circuit of any suitable type.Controller 33 for example can be the programmable hardware with embedded firmware.Controller 33 can be single integrated circuit or one group of integrated circuit (being chipset).Controller 33 also can be hard-wired (hardwired) special IC (ASIC).In illustrated example, controller 33 can comprise explains the programmable processor 12 that is stored in the computer program instructions 13 in the storer 14.
Processor 12 connections are read with write store memory device 14 with from it.This memory device 14 can be single memory unit or a plurality of memory cell.
But memory device 14 storage computation machine programmed instruction 13, said computer program instructions 13 is when the operation that is loaded into timed unit 30 in the processor 12.Said computer program instructions 13 can provide and make said device can carry out logic and routine in method shown in Fig. 3 and Fig. 5.
Said computer program can arrive device 30 via any suitable connecting gear (delivery mechanism) 21.Said connecting gear for example can be the recording medium of computer-readable recording medium, computer program, memory devices, for example CD-ROM or DVD, visibly implement the goods of computer program 13.Said connecting gear can be the signal that is configured to transmit reliably computer program 13.
Device 30 can be propagated computer program 13 or send as computer data signal.
Though storer 14 illustrates as single parts, it can be embodied as one or more separated components, wherein some or all can be integrated/removable, and/or the storage of permanent/semipermanent/dynamic/buffering can be provided.
To quoting of " computer-readable recording medium ", " computer program ", " computer program of visibly implementing " etc. or " controller ", " computing machine ", " processor " etc.; Be interpreted as not only containing have different frameworks for example single/computing machine of a plurality of processor architectures and sequential (von Neumann)/parallel architecture, and contain special circuit for example field programmable gate array (FPGA), special IC (ASIC), signal handling equipment and miscellaneous equipment.To quoting of computer program, instruction, code etc.; Be interpreted as containing the software that is used for programmable processor or firmware, such as no matter being the instruction of processor or the programmable content of the hardware device of the configuration settings of fixed function equipment, gate array or programmable logic device.
It will be understood by those skilled in the art that for clarity sake controller 33 is described as the entity to the separation of acceptor circuit 34.Yet; Be understood that term " controller 33 " can not only relate to the primary processor of device; And relate to the treatment circuit that is included in the dedicated receiver chipset, and even relate to the combination that is included in the treatment circuit in primary processor and the dedicated receiver chipset.
The chipset that is used to carry out the embodiment of the invention can be combined in the module.This module can be integrated in the device 30, and/or with device 30 be separable.
Fig. 3 illustrates a kind of method of the position that is used for estimation unit 10.The various embodiment of the method for Fig. 3 will be described below.Although this method is described with diversity reception (diversity reception), be understood that it is applicable to that also the branch collection sends in context.In a minute collection sent, a plurality of radio signals were from different antennas element transmission spatially.In diversity reception, spatially different antennas element place receives radio signals.
Below will suppose, the radio signal 50A of corresponding diversity reception spatially, 50B, 50C receives at acceptor device 30 places, shown in Fig. 1 and Fig. 2.
At piece 200 places of the method for Fig. 3, acceptor device 30 detects and comprises first, second and the 3rd radio signal 50A, 50B, the radio signal 50 of 50C.
At piece 210 places, the controller 33 of device 30 utilizes the radio signal 50 that is detected with the orientation 82 from primary importance 80 estimation units 10.
Processor 12 obtains said three corresponding radio signal 50A, 50B, the comparable second mining appearance (promptly representing the sampling in the identical moment) of 50C.
Then, processor 12 estimation orientation 82.Describe a kind of method of confirming orientation 82 now, but other method also is possible.
In case obtain comparable second mining appearance (promptly representing the sampling in the identical moment), so can form array output vector y (n) (being also referred to as snapshot (snapshot)) by processor 12 from each antenna element 32.
y(n)=[x 1,x 2，...,x M] T， （1）
Therein, x iBe the complex signal (complex signal) that receives from i RX antenna element 32, n is the index (index) of this measurement, and M is the quantity of the RX element 32 in the array 36.
If (complex array transfer function)
Figure BDA00002147593600071
is known for the plural array transport function of RX array 36; Then can from measured soon by estimate ripple from direction (Direction of Departure; DoD), it is from calibration data.
The simplest method of the DoD that estimation is inferred is to use beam shaping (beamforming), promptly calculates the received power relevant with all possible DoD.The formula of traditional beam-shaper of knowing is:
Figure BDA00002147593600072
Therein,
Figure BDA00002147593600073
is that the sample of the covariance matrix of the signal that received is estimated;
Figure BDA00002147593600074
is with
Figure BDA00002147593600075
relevant array transport function,
Figure BDA00002147593600076
be that position angle (azimuth angle) and θ are the angles of pitch.
In case calculate the output power of the beam-shaper
Figure BDA00002147593600077
in might DoD, select to have the angle of pitch and azimuthal orientation 82 that is combined as of maximum power output.
The performance of said system depends on the character of RX array 36.For example; Be used to obtain clear and definite result, the array transport function
Figure BDA00002147593600078
relevant with different DoD should have alap correlativity.
Correlativity depends on the geometric configuration of the individual radiation mode (individual radiation pattern) of antenna element 32, interelement distance and array.The quantity of array element 32 is also influential to performance.The element 32 that array 36 has is many more, and it is accurate more that said DOA estimation just becomes.Minimum at least 3 antenna elements 32 that should have with planar array configuration, and in practice, 10 or more a plurality of element should provide good performance.
Then, at piece 220 places, processor 12 utilizes the position of orientation and constraint information estimation unit 10.
In some embodiments of the invention, the use of constraint information can be confirmed along the position of the device 10 in estimated orientation 82 processor 12.
Fig. 4 also illustrates from the position 80 of acceptor device 30 to the orientation 82 of the position 95 of sender device 10, and this orientation 82 is along with the reception of radio signal 50 is estimated by processor 12.This orientation 82 is by pitching angle theta and position angle Φ definition.
Processor 12 said orientation capable of using (pitching angle theta; Position angle Φ) and constraint information for example perpendicular displacement h (Fig. 4) or extra orientation (Fig. 5) or scope r (Fig. 4, Fig. 6), estimate position with respect to the device 10 of the position 80 of the acceptor device in coordinate 30.Processor 12 trigonometric functions capable of using are estimated the position of the device 10 in Cartesian coordinates through converted coordinate.
Be understood that by processor 12 required solving equation 2 and definite orientation and confirm that then the processing of location is very important.If this processing is only carried out when after processing, accurate position being provided at the signal 50 that receives when credible office, this will be favourable.
Fig. 5 is schematically illustrated to be used to determine whether to handle the signal 50 that received to confirm the method 40 in orientation.Although this method will be described with diversity reception, should be understood that it is applicable to that also the branch collection sends in context.In a minute collection sent, a plurality of radio signals were spatially sent from different antenna elements.In diversity reception, radio signal different antennas element place spatially receives.
At piece 41 places, signal 50A, 50B, 50C be at device a plurality of antenna element 32A of 30,32B, the reception of 32C place.
At piece 42 places, at least some of said a plurality of antenna elements 32 are obtained the parameter 46 of the signal 50 that is received.
At piece 43 places, the parameter 46 that test is obtained.If said test crash 44 is then refused the signal that is received 50 is used to locate sender device 10 and this method turns back to piece 41.If said test is through 45, the method that then signal that is received 50 is used for locating sender device 10 and Fig. 3 runs to piece 210.
Parameter 46 depends on signal intensity and the power that is normally received.
The mode of the polarization of the signal 50 that the parameter of being obtained 46 (power that is received) can be received to be independent of is measured.With reference to figure 8A and Fig. 8 B, this realizes through in receiving circuit 34, the power of two ports of dual polarized antenna element 32 being synthesized.Two quadratures are presented (feed) 41A, and 41B takes from circular polarization aerial element 32.Power divider 42A, 42B or one pole both-end (SP2T) switch 50A, 50B are used for respectively presenting 41A, and 41B is divided into and is used for the first signal 44A that direction is searched, 44B and the secondary signal 45A that is used for power measurement, 45B.Utilize phase shifter 43 that the phase differential of pi/2 is introduced a 45B in two secondary signals, then in power combiner 46 with two secondary signal 45A, 45B is synthetic.The power output 47 of being synthesized is provided to the benchmark port of one pole N end (SPNT) radio frequency (RF) switch 48.The secondary signal 45A that will be used for power measurement, 45B are provided to other port of SPNT RF switch 48.Then, the further output of handling from switch 48 49.
Test 43 can detect the relation whether parameter 46 satisfies definition.
For example, with reference to figure 6, array 36 definition of a plurality of antenna elements 32 receive volume 60.By being positioned at signal 50 trusteds that said reception volume 60 inner source sender devices 10 are sent to be used for by device 30 location.Said reception volume 60 only schematically illustrates.
The source apparatus 10 of test through 45 signals 50 that received of indication is within said reception volume 60.
The source apparatus 10 of the signal 50 that test crash 44 indications are received is outside said reception volume 60.
Said test 43 can compare the parameter 46 of one or more other antenna elements 32 in the parameter of reference antenna element in the array 36 46 and this array.
When the sender device 10 that is the source of the radio signal 50 that received is receiving volume 60 when inner, said relatively have first characteristic.For example,, make n represent selected reference antenna element, make P if there be N antenna element nRepresentative is at the power that is received at this reference antenna element place, and P mThe power that is received at the place of representative in other N-1 antenna element.If the power that receives in reference antenna element place surpasses each the power that is received threshold value T at least of other antenna element 1(its can be positive or negative), the source apparatus 10 of the radio signal 50 that can confirm so to be received receiving volume 60 inside.Said first characteristic can be expressed as:
P n>max(P m+T 1)m≠n,1<m<N
If the power of reference element is higher than other antenna element 32 any, can supposes that then the angle that this signal follows array 36 proper operations to belong to takes place, and can further handle this signal 50 thus.
When the device 10 that is the source of the radio signal 50 that received was receiving outside the volume 60, said relatively had second characteristic.For example,, make n represent selected reference antenna element, make P if there be N antenna element nBe illustrated in power and P that this reference antenna element place receives mBe illustrated in the power that a place in other N-1 antenna element receives.If the power that receives in this reference antenna element place less than receive in other antenna element place by threshold value T 2The minimum power of regulating, the source apparatus 10 of the radio signal that then can confirm to be received is receiving outside the volume 60.Said second characteristic can be expressed as:
P n<min(P m+T 2)m≠n,1<m<N
If the power of reference element is lower than the power in any of other antenna element 32, can suppose that then this signal follows the very high angle of pitch to take place, at the said array of this angle of pitch not proper operation and discardable thus this signal 50.
Said reference antenna element can be selected as the part of aerial array 36 with the calibration process that receives volume 60.Said reference antenna element can be selected to make when the source apparatus 10 of received signal 50 is receiving within the volume 60; The ratio of the parameter 46 of this reference antenna element and one or more other antenna elements 32; When receiving outside the volume 60 much larger than source apparatus 10 when received signal 50, the ratio of the parameter 46 of reference antenna element and one or more other antenna elements 32.
Said computer program instructions 13 make in being loaded into processor 12 time this processor can: the parameter that test is obtained from the received signal 50 that is associated with corresponding a plurality of antenna elements; If said test crash then makes realization that the signal of said reception is used for the refusal of locating device, and if said test pass through, then make the signal of said reception can be used in the said device in location.
An example of the schematically illustrated suitable aerial array 36 of Fig. 7.In this example, aerial array 36 is aerial arrays 36 that ceiling is installed.Aerial array 36 comprises the dual-polarized patch antenna 32A that is orthogonal to first direction 35 alignings of said ceiling as the edge of central reference antenna element.Extra annular dual polarization elements 32B, 32C ... 32E circumscribed (circumscribe) said central reference antenna element 32A but have different corresponding displacement d along said first direction.Said displacement d is more little, then said annular dual polarization elements 32B, and 32C ... the radius of the ring of 32E is big more.
Antenna element 32 is started by sequence by switch 38 (Fig. 2).Switch 38 is configured to control relative phase or the order that definition receives said a plurality of antenna elements of volume 60.
In this configuration, the main beam of the radiation mode of center antenna covers the major part (all) that said array expection goes on well the residing angle of pitch.
The tuning point that selection is connected to the automatic gain controller (AGC) of aerial array 36 makes, if slicing (clipping) should not take place within aerial array 36 is used to locate residing reception volume 60 time signal source device 10.
The reliable position that aerial array 36 can only be given in the limited angle of pitch scope (for example 0 ° < θ>60 °) is estimated.
Method 40 is applicable when using the branch collection to send.When use divided collection to send, alternative had from identical source apparatus 10 reception corresponding signal 50A, 50B; The different antennas element 32A of 50C, 32B, 32C; This device 30 need be from corresponding different source sender device 10A spatially, 10B, and 10C receives signal 50A; 50B, only antenna element 32 of 50C.
When use dividing collection to send, this device 30 is mobile device and said various signals spatially is provided by different base stations device 10 normally.That is, said branch collection is provided by foundation structure.Mobile device 30 is with respect to the known location of base station apparatus 10 and locate self.
By contrast, when using diversity reception, the base station apparatus that this device 30 is normally fixing.That is, said branch collection is provided by foundation structure.Device 30 location are the device 10 of mobile device with respect to the known location of device 30 usually.
When using the branch collection to transmit, said method 40 is suitable for.At piece 41 places, receive and a plurality of antenna element 32A the signal 50A that 32B, 32C are associated, 50B, 50C.Yet, not a plurality of antenna element 32A at device 30,32B, the said radio signal 50A that the 32C place receives, 50B, 50C, but from space diversity device 10A, 10B, 10C send and receive said wireless signal 50A, 50B, 50C at device 30 places.
The use of having ready conditions of the received signal 50 that embodiment is provided for locating.Only when the test of the parameter of obtaining from the signal 50 that is received was passed through, the signal 50 of said reception just was used for the location.If said test crash is then refused the signal 50 of said reception.
Through the mistrustful signal 50 of identification before processing, therefore the amount of DOA estimation reduces.
Divide collection to transmit if carry out, then installing 30 is the battery lifes that move and can increase it, can increase the processor time or the location update frequencies of other application program that is given to.
If the execution diversity reception, then installing 30 is servers of a plurality of mobile devices 10 of service.In the case, avoid distrusting that the processing of data is created in the saving of the computational resource in the device 30.This can increase positioning system capacity (quantity of the device 10 that is positioned).
Method 40 provides a kind of strategy simply and fast that is used to abandon mistrustful data, this strategy be created in the location algorithm complexity reduction, the saving of processor time, the energy saving and the system reliability that increases and do not sacrifice bearing accuracy.
But step in the piece method for expressing shown in Fig. 3 and Fig. 5 and/or the code snippet in said computer program 13.Must not hint existence to said required or preferred order to the diagram of said particular order, and said order can change with arranging.
Though described embodiments of the invention with reference to various examples in the paragraph in front, what it should be understood that is under situation about not deviating from like desired scope of the present invention, can said example is made amendment.For example, said device 10 can not be used as mobile phone.It for example can be the portable music player with the receiver that is used to receive radio signals.
Provided the various examples of constraint information in the paragraph in front, but term " constraint information " is not to be intended to be limited to these examples.
In the combination beyond the combination that characteristic described in the explanation in front can be used for clearly describing.
Endeavour in above stated specification to focus on that of the present invention being considered to have in those characteristics of particular importance property, be understood that the applicant requires the protection of no matter whether making ben characteristic or combination of features to any patentability above that preamble is referred to and/or illustrated in the accompanying drawings.

Claims (19)

1. method comprises:
Receive the signal that is associated with a plurality of antenna elements;
Obtain at least some the parameter of signal of said reception of said a plurality of antenna elements; And
Test the said parameter of obtaining;
If said test crash is then refused the signal of said reception is used to locate said device;
If said test is passed through, then the signal with said reception is used to locate said device.
2. the method for claim 1, wherein said parameter depends on signal intensity.
3. according to claim 1 or claim 2 method, wherein said parameter is the power that is received.
4. like each described method of aforementioned claim, the wherein said parameter of obtaining is independent of the polarization of the signal of said reception.
5. like each described method of aforementioned claim, wherein said test detects the relation whether said parameter satisfies definition.
6. as each described method of aforementioned claim, wherein said a plurality of antennas definition receive volumes, and the source of test through the signal of the said reception of indication is within said reception volume.
7. as each described method of aforementioned claim, wherein said a plurality of antennas definition receive volumes, and the source of signal that test crash is indicated said reception is outside said reception volume.
8. like each described method of aforementioned claim, test that wherein the said parameter of reference antenna element and the said parameter of one or more other antenna elements are compared, and said relatively to testing through having first characteristic.
9. as each described method of aforementioned claim, test that wherein the said parameter of reference antenna element and the said parameter of one or more other antenna elements are compared, and saidly relatively test crash is had second characteristic.
10. as each described method of aforementioned claim; Wherein said a plurality of antenna element is mounted in the antenna element of the aerial array of ceiling, and said aerial array comprises that the dual-polarized patch antenna of aiming at along first direction as the central reference antenna element is with circumscribed said central reference antenna element but have the extra annular dual polarization elements of different displacements along said first direction.
11. a device comprises:
Testing circuit is configured to detect the parameter of the signal of the reception that is associated with corresponding a plurality of antenna elements; With
Test circuit; If be configured to test the said parameter of obtaining and be configured to said test crash then make realization that the signal of said reception is used to locate the refusal of said device, and if be configured to said test through then make the signal of said reception can be used in the said device in location.
12. device as claimed in claim 11 further comprises: compositor, the different poles that is used to identical antenna element is combined to power to confirm parameter.
13. like claim 11 or 12 described devices; Further comprise: timing control circuit; Be configured to control the relative phase of said a plurality of antenna elements; The relative configuration definition of wherein said timing control circuit and said a plurality of antenna elements receives volume, and the source of test through the signal of the said reception of indication is within said reception volume.
14. like each described device of claim 11 to 13, wherein said test circuit is configured to the said parameter of the said parameter of reference antenna element and one or more other antenna elements is compared.
15. each described device like claim 11 to 14; Wherein said device is configured to be used for diversity reception and said device is included in the aerial array that ceiling is installed, and said aerial array comprises: as the dual-polarized patch antenna of aiming at along first direction of central reference antenna element and circumscribed said central reference antenna element but have the extra annular dual polarization elements of different displacements along said first direction.
16. a computer program, said computer program make in being loaded into processor the time said processor can:
The parameter that test is obtained from the signal of the reception that is associated with corresponding a plurality of antenna elements;
If said test crash, then make realization with the signal of said reception be used for locating device refusal and
If said test is passed through, then make the signal of said reception can be used in the said device in location.
17. a system comprises:
The source is configured to send the radio signal that is used for the location receivers device; With
Acceptor device comprises:
A plurality of antenna elements are configured to receive the said radio signal of sending from said source; With
Testing circuit is configured to detect at least some the parameter of signal of said reception of said a plurality of antenna elements;
Test circuit; If be configured to test the said parameter of obtaining and be configured to said test crash then make realization that the signal of said reception is used to locate the refusal in said source, and if be configured to said test through then make the signal of said reception can be used in said source, location.
18. a system comprises:
The source of separating on a plurality of spaces, each is configured to send the radio signal that is used for the location receivers device;
Acceptor device comprises:
At least one antenna element is configured to receive the said radio signal of sending from said source;
Testing circuit is configured to detect at least some the parameter of signal of said reception of said multiple source; With
Test circuit; If be configured to test the said parameter of obtaining and be configured to said test crash then make realization that the signal of said reception is used to locate the refusal of said device, and if be configured to said test through then make the signal of said reception can be used in the said device in location.
19. a device comprises:
At least one processor; With
At least one storer that comprises computer program code;
Said at least one storer and said computer program code are configured to, and with said at least one processor, said device are carried out at least:
The parameter that test is obtained from the signal of the reception that is associated with corresponding a plurality of antenna elements;
If said test crash then makes realization that the signal of said reception is used for the refusal of locating device, and
If said test is passed through, then make the signal of said reception can be used in the said device in location.
CN201080065509.4A 2010-03-17 2010-03-17 For testing the method and apparatus of received signal in radio signal positioning system Expired - Fee Related CN102812378B (en)

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WO2011114189A1 (en) 2011-09-22
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CN102812378B (en) 2016-03-16
US20130096861A1 (en) 2013-04-18

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